What is an error log table in informatica occurs and how to maintain it in mapping?
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What is latest version of power center / power mart?
Explain what is what are semi-additive and factless facts and in which scenario will you use such kinds of fact tables?
Explain the difference between data ware house & data mart?
What are the design methods of data warehousing?
Explain dimensional modelling?
What are the advantages of raid 1, 1/0, and 5. What type of raid setup would you put your tx logs?
What are the fundamental elements of the data warehouse?
Explain what are the advantages and disadvantages of reporting directly against the database?
How can we run the graph? How can we schedule the graph in unix?
Explain the difference between keylokup and joiner?
Why joiner transformation does not allow the aggregator transformation and expression transformation to join
What is a core dimension?